My Primary Adapter runs at Proper PCI-E 2.0 x16 According to ATI Control Center,
The Secondary Adapter only Runs at PCI-E 2.0 x4.

GPU-Z also Says Link Width is x4 but x16 capable , and i couldnt find an Option in the Driver Menues to change this.

The Mainboard Manual has a Chapter for Bios of PCI-E Watts Configuration Peer 2 Peer Link etc. but in my 1403 Bios this Option is Missing. According to ASUS Support the BUS LANEs dont need to be configured manually. ASUS mailed me a new Bios to solve this problem, but it didnt help.
I also havent found any similar option that could be relevant to this problem.

The Mainboard Manual has a Chapter for Bios of PCI-E Watts Configuration Peer 2 Peer Link etc. but in my 1403 Bios this Option is Missing. According to ASUS Support the BUS LANEs dont need to be configured manually. ASUS mailed me a new Bios to solve this problem, but it didnt help.
I also havent found any similar option that could be relevant to this problem.

Any Ideas

Click to expand...

At this point I would switch to a previous bios. If possible contact Asus again for another bios.

At this point I would switch to a previous bios. If possible contact Asus again for another bios.

Click to expand...

Unfortunately Switching to a Previous Bios isnt possible because my AMD 965 C3 isnt supported in any BIOS earlier than 1301 came out Dec.09. that was the bios i had tzo upadte to from Sep.09 BIOS before my BIOS could even POST. According to ASUS the Bios aint the Problem i mailed them back and waiting on an answer

Unfortunarely with my CPU Reverting BIOS any earlier than 13x isnt possbile (BIOS not posting). My last hope may be Swapping the Cards. i tried inserting an running one at a time but didnt solve the problem.

Then i Tested Each Card at a time and i found out one Card still ran at x4 in Single Mode.

Then i put the other card in its place and it ran at x16 again, so its not the Board but one of the Cards.

The Two card are nearly Identical, one card is directly from Sapphire and the other is also Sapphire but from Gamestar, so the x4 card is the 4890 Gamestar Edition,
in GPU-Z it pointed out that the x4 clock is not normal but MAY be a Power saving function from the Card.

Other than that all the Rest (Clock, Vcore, RAMclock) is all Identical !

I tried running a Game in Windowed Mode and starting up GPU-Z while the game runs to see if its changing to x16 but still only x4 , then i remembered that (as far as i know) Crossfire only runs at Fullscreen

Well maybe someone has a 4890 Toxic Gamestar Edition and can tell me if they have got the same Readings as i do ?

Considering that only 200 or so of the Card were made i consider the Chances Pretty Low but maybe ill get Lucky.